Shoe for mowing-machines



(No Model.) 4 Sheets-Sheet 1..

G. H. BARTLETT.

I SHOE FOR MOW ING MAGHINES. No. 340,083. Patented Apr. 2O, 1886.

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SHOE FOR MOWING MACHINES. No. 340,083. Patented Apr. 20, 1886.

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SHOE FOR MOWING MACHINES.

No. 340,083. Patented Apr. 20, 1886.

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i (No Model.) I 4 Sheets-Sheet 4.

G. H. BARTLETT.

SHOE FOR MOWING MAGHINES;

No. 340,083. Patented ApnZO, 1886.

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UNITED STATES PATE T OFFICE.

GEORGE HERMAN BARTLETT, OF MADISON, WISCONSIN.

SHOE FOR MOWlNG-MACHINES.

SPECIFICATION forming part of Letters Patent No. 840,083, dated April20, 1886.

ApplicatiOn filed February 5, 1885. Serial No. 155,057. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE HERMAN BART- LETT, residing at Madison, inthe county of Dane and State of Visconsin, and a citizen of the UnitedStates, have invented a new and useful Improvement in Shoes forMOWingMachines, of which the following is a full description, referencebeing had to the accompanying drawings, in which Figure l is a sideelevation showing theinner face of the shoe; Fig. 2, atop or plan view;Fig. 3, a cross-section through the shoe on line or a: of Fig. 1; Fig.4, a side elevation of the movable section of the shoe, showing theinside face; Fig. 5, a top or plan view of the movable section of theshoe; Fig. 6, a longitudinal section on line y y of Fig. 4; Fig. 7, aside elevation showing the outer face of the shoe; Fig. 8, a sideelevation showing the inner face of the shoe with the removable sectionremoved; Fig. 9, a top or plan view of the shoe with the movable sectionremoved; Fig. 10, a horizontal section on line 2 z of Fig. 8; F1g.l1,aside elevation showing such parts of a machine as required to illustratethe de vices for rocking the shoe, and showing also a portion of thedevices for lifting the shoe as a whole.

The nature and object of this invention are to so construct a main orinner shoe of amowingmachine, upon which are supported and carried thefinger-bar and cutting apparatus, that thefinger-bar can be tilted orturned in the line of ltslength, and on a line, or nearly so, with thepitman and knife-back, so that no cradle motion or vertical motion ofthe whole cutting apparatus takes place, the object being to so arrangethis mechanism that the operator in his seat can raise or depress atwill the points of the guard-fingers and cutters, to accommodate thecutters to different conditions of crop and to the surface of the fieldover which the machine is drawn, and so attach the cutting apparatus tothe main shoe that the movement of the points of the guard-fingers, asdescribed, will not throw the line of the guard-fingers out ofparallelism with their original or normal condition.

In the drawings, A represents the circular main portion or body of theshoe, having, as shown, on its exterior face strengtheningfianges a, andhaving at its lower end side extensions, A, on the inside of the shoe,united by a cross-piece, A, so as to leave an open space below the roundportion outward from the cross-piece A, as shown in Fig. 10, and thiscircular portion or main body of the shoe has a forward extension, Awith a bearing, a, for the axle or bolt which supports the wheelcarrying the forward end of the shoe, and the body portion has arearward extension, A, forthe attachment of the supportingbar of themain frame of the machine, the bar having its end located between thecars a and a, and being held in place by a pin or bolt passing through ahole in the ears, as usual, and, as shown, the forward end of the mainportion of the shoe is provided with a bearing, a, to receive the end ofa guard or brace-rod running to the main frame or other portion of themachine. (Notshown) The curved portion A of the main part of the shoehas an interior wall or face, which terminates at the bottom with theopening formed by the cutaway portion, and, as shown, the inner wall orface of the cross-piece A is provided With a curved recess, a, thecircle of which is of less diameter than the circle of the holeformed bythe inner wall of the portion A, but the center of which correspondswith the center of the hole of A.

B is a circular or bearing portion of the secondary part of the shoe,which, when the parts are together, has its exterior wall or facefitting the interior wall of the part A, and the end or bottom of thepart B is united by a web or plate, B, formed therewith, which plateextends out beyond the line of the side of B, as shown at B. Thisextension B comes within the space between the side extensions, A, andcross-piece A. The end face or wall of the extension B is provided witha circular flange or rib, b, which, when the parts are together, fitsinto the recess a, and, as shown, at the front and rear of the extensionB are flanges b, the exterior face of which is curved to fit the curvedface on the walls of the extensions A, and form a bearing between theextension B and the walls of the extensions, A, and, as shown, theflange or rib b extends across the full width of the bottom B andextension B, and

the plate formed by B B fits the opening left in the bottom of themainportion of the shoe.

The bearings for the secondary portion of the shoe are furnished by theinterior of the curved portion A and the recess a and flange or rib b.This bearing between the parts A and B being formed on one side of theshoe by the extension and interior surfaces, and

which extend throughout the entire surface to the inside face of thecircle B, and the body of which extends up and lies in contact with theinside face of the circle A, and its upper end, which projects above theupper face of the circle A, is provided with a head, 0', to receive aconnecting rod or link. As shown, astop, 0, is cast or formed on theface of the ring B, to engage with the rear edge of the arm 0, and astop, 0 is cast or formed on the face of the ring A, to be engaged by aflat or stop face, 0, on the front edge of the arm 0. The stop 0 acts asa brace to take the strain from off the bolts 0, and the stop 0 inconnection with the stop face c, furnishes the means for limiting theforward throw of the arm 0, and consequently the forward movement of thering B and downward movement of the plate or bottom portion of suchring.

D is a rod or link attached at one end to the head 0, the attachment, inthe form of con struotion shown, being by means of nuts d, which can beadjusted forward and back on the rod to adjust the movement of the arm0. This rod or link D runs back, and is attached at its other end to alever operated by the driver of the machine.

E is a guide-clip, attached at one end by a bolt, 6, to the circle B,and extending around the inner edge of the circles A B and over the topof the circle A, as shown in Figs. 2 and 3, and forming a stop againstend movement of the secondary part of the shoe and a guide for therocking movement or oscillation of the ring or circle B within the ringor circle A, and this guide-clip E, in connection with the arm 0,furnishes one of the means by which the two parts of the shoe are lockedtogether, so as to leave the secondary part free to turn in the mainpart without liability of any great amount or degree of end-play.

F is the bar to which the guard-fingers F are attached in the usualmanner, this bar at its inner end being secured by bolts f, orotherwise, at the rear side of the bottom or plate portion of thesecondary part of the shoe between the walls of a recess formed in theupperface of such bottom or plate portion back of the rib or ledge b. V

G is a cutter-bar, to which the cutters or knives are secured, as usual.This bar is located forward of the bar F, and lies within the recesstherefor in theguard-fingers, to bring the knives or cutters in properrelation with the fingers to operate as usual. This cutterbar G has atits inner end, as shown, an eye at the point G, forconnecting with thedriving-pitman, which eye has its center in line with the center of thecircle of the hearing or ring portion B of the secondary part of. theshoe, so that the center of motion of such part driven is a common one,by which means the point of thefingers and cutters or knife can beoscillated up or down without destroying the connection between thecutter or knife and its driving-pitman; and it will also be seen that,the two centers being at a common and the point at which the sickle orknife is point, the pitman is free to act irrespective of the positionof the cutting apparatus.

H is a lever, pivoted at h to the frame of the machine, and extending upto a point-where its upper end will be within reach of the driver, andhaving attached to its lower end the rear end of the rod or link D, asshown in Fig. 11. At the upper end of this lever H is a bellcrank lever,h, connected with a rod, h,which in turn is connected to a slidingcatch, h, moving in guides h on the side of the lever.

I is a segmental plate attached to the frame of the machine to coactwith the lever H, the upper edge having notches i, to receive the end ofthe sliding catch h and lock the lever H forward or back, or in anyposition desired to hold the arm 0 in a forward or back or otherposition, as required for the position of the cutting apparatus.

The dotted lines in Fig. 11 show the position of the parts when thecutting apparatus is up, and the fulllines the position of the partswhen the cutting apparatus is down.

J is asupport for the shoe, madein two parts, hinged together andpivotally connected to the shoe and the frame, and a lifting-lever, bywhich the shoe and cutting apparatus can be raised a hinged connection,as usual, with the shoe, by which it can be folded up to travel fromplace to place, such construction, however, forming no part of thisinvention, and being therefore not shown.

The feature of supporting and carrying the cutting devices by theoscillating secondary part of the shoe is an important one in theconstruction of mowers, as it enables the cutting apparatus or thepoints of the guards to be oscillated up or down without disturbing themain portion of the shoe, which can 'run in the same plane, irrespectiveof the position of the cutting apparatus, and this benefit will accrueto the construction .if the pitman is connected to the cutter or knifeor to the crank- I x 5 bodily, as usual, the cutting apparatus havingpin, in the usual manner, by aball-andsocket joint,which jointwillpermit of the oscillation of the cutting apparatus.

XVhat I claim as new, and desire to secure 5 by Letters Patent, is-

1. An inner or main shoe for a mowinginachine, consisting of two parts,one within the other, the inner part supported at the top and bottom onthe outer part by segmental IO bearings, the upper bearing being formedon segments of circles of different diameter from the bottom or sidebearing, whereby the two points of bearing are coacting to resist thestrain in raising the cutter-bar and the strain r 5 from the thrust ofthe cutting apparatus, substantially as and for the purpose specified.

2. A main shoe for a mowing-machine, composed of two segmental parts,one part working within the other and held together by the 4. The circleor ring A and circle or ring B, e

in combination with the arm 0 and guide-clip E, for maintaining therings against end movement, substantially as specified.

GEORGE HERMAN BARTLETT. Vitnesses:

ROBERT Woo'r'roN, CHAS. R. WooT'roN.

